1. For the following code segments:

a) identify the addressing mode of each instruction

b) manually assemble each instruction using the instruction table

c) show the memory diagram of the assembled machine code

d) show the memory diagram of data memory after the code is executed

ORG $C000

LDAA #$27

STAA $1000

ORG $C400

LDX #$5678

STX $30

ORG $C120

LDAB #$12

LDAA #$97

INCB

STD $B000

ORG $C500

LDX #$DEAD

LDD #$BEEF

XGDX

STX $0040 STD $F100

ORG $0800

LDX #$2000

LDAB #24

STAB 0,X

ORG $0900

LDY #$E100 LDD #$74F2

STD 12,Y

2. Create the memory diagrams to show DATA memory contents and addresses after execution of

each code segment. a)
	ORG	$0800
TEMP	RMB	1
VAR1	FCB	$14
VAR2	FCB	$35
	ORG NOP	$0900
	LDX	#TEMP
	LDAA	VAR1
	LDAB ABA	2,X
	STAA	0,X
b)	STD NOP	3,X
	ORG	$C000
NUMBAS	FCB	2,4,7,5,3
SUM	RMB	2
	LDY	#NUMBAS
	LDX	#0
	LDAA	#5
LOOP	LDAB ABX INY DECA	0,Y
	BNE	LOOP
c)	STX NOP	SUM
	ORG	$0B00
SCALE	FCB	$F2
CONST	RMB	1
ANSWER	RMB	2
	ORG	$0800
	LDX	#SCALE
	LDAA	#$25
	STAA	CONST
	LDAB MUL	0,X
	STD NOP	ANSWER